ISO 30024:2009规定了饲料样品中植酸酶活性的测定。 该方法不区分作为饲料添加剂的植酸酶和饲料中已经存在的内源植酸酶。 该方法不能用于评估或比较植酸酶产物的体内功效。它不是市场上植酸酶的体内功效的预测方法，因为它们可以发展每单位活动的不同体内功效。 该方法仅适用于确定植酸酶活性且仅在完全饲料中进行验证

ISO 30024:2009 specifies the determination of phytase activity in feed samples. The method does not distinguish between phytase added as a feed additive and endogenous phytase already present in the feed materials. The method cannot be used to evaluate or compare the in vivo efficacy of the phytase product. It is not a predictive method of the in vivo efficacy of phytases present on the market as they can develop different in vivo efficacy per unit of activity. The method is suitable and validated exclusively for the determination of phytase activity and exclusively in complete feeds.